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Thermo Fisher Scientific EcoScan DO 6 User Manual

Page 29

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Instruction Manual

DO 6

21

the factory default calibration with a CAL indicator blinking at the corner of the
display.

6) Press

the

▲ and ▼ keys to adjust the reading to the known oxygen

concentration of the sample.

7) Press the HOLD/ENTER key to confirm the calibration. The meter will

display “CO” for 1.5 seconds and automatically calibrates to the value you
have entered and returns to the measurement mode.

NOTES: The concentration calibration window is +/- 40% of the factory default
value. However, the minimum point of calibration is 2 mg/L. In an event where
the default measured value is less than 2 mg/L and a calibration is attempted,
the display will show “2.00” and then error message “Err.1” will be displayed
momentarily before returning to measurement mode.

You can change the barometric pressure value and salinity value in the mg/L
(ppm) Set Up menu (see Section 7.8.1 and 7.8.2 for Pressure Setting
Adjustment and Salinity Setting Adjustment). Please refer to page 23 if you are
intending to use manual temperature compensation.